US Patent Issued to The Procter & Gamble on Oct. 14 for "Flexible and dissolvable solid sheet article" (Chinese, Singaporean, American Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,967, issued on Oct. 14, was assigned to The Procter & Gamble Co. (Cincinnati).

"Flexible and dissolvable solid sheet article" was invented by Hongsing Tan (Beijing), Carl David MacNamara (Beijing), Robert Wayne Glenn Jr. (Liberty Township, Ohio), Ming Tang (Beijing) and Toshiyuki Okada (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "This provides a flexible and dissolvable solid sheet article containing a PVA polymer or copolymer having a weight average molecular weight of from 50,000 to 400,000 Daltons and a major surfactant selected from the group consisting of C6-C20 linear alkylbenzene sulfonates (LAS), alkoxylated sodium trideceth sul...